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Method for rapidly forming carbon-loaded doped anti-spinel ferroferric oxide film capable of realizing alkaline hydrogen evolution

A technology of ferric oxide film and reverse spinel, which is applied in the direction of electrolytic components, electrodes, electrolytic process, etc., can solve the problems of expensive and limited platinum-based metals, and achieve good electrical conductivity, improved supply, and large specific surface area Effect

Active Publication Date: 2022-04-26
CHANGZHOU UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the platinum-based metals currently used in electrolyzed water cathodes are relatively expensive, which is greatly limited in practical applications.

Method used

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  • Method for rapidly forming carbon-loaded doped anti-spinel ferroferric oxide film capable of realizing alkaline hydrogen evolution
  • Method for rapidly forming carbon-loaded doped anti-spinel ferroferric oxide film capable of realizing alkaline hydrogen evolution
  • Method for rapidly forming carbon-loaded doped anti-spinel ferroferric oxide film capable of realizing alkaline hydrogen evolution

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Embodiment 3

[0032] A certain amount of PAA resin will be weighed and added to a 250mL three-necked flask equipped with an appropriate amount of DMAc solvent. 3 o 4 and melamine-coated ammonium polyphosphate, and mechanically stirred to obtain a PAA composite resin with a solid content of about 15%. Pour the PAA composite resin on a dry glass plate, and carry out a stepwise temperature rise. The stepwise temperature rise program is 50°C for 1h, 100°C for 1h, and 250°C for 2h. Thermal imidization reaction occurs to obtain PI / Fe 3 o 4 Composite film.

[0033] Laser ablation of the composite film: before laser ablation of the composite film, the PI / Fe 3 o 4 The surface of the composite film was cleaned, and then dried in a drying oven at 50°C for 8 hours. Then, the PI / Fe 3 o 4 The composite film is flatly fixed on the operating table, and the focus of the fiber laser and the PI / Fe 3 o 4 The surface of the composite film is overlapped, and the laser processing parameters are set. The ...

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Abstract

The invention belongs to the field of preparation of carbon materials through laser ablation, and particularly relates to a method for rapidly forming a carbon-loaded doped anti-spinel ferroferric oxide membrane capable of realizing alkaline hydrogen evolution, which comprises the following steps: stirring ferroferric oxide, polyamide acid (PAA) and a pore-forming agent in a N, N-dimethylacetamide (DMAc) solvent at low temperature, dispersing at high speed through a cell disruptor, and drying to obtain the carbon-loaded doped anti-spinel ferroferric oxide membrane. Uniformly dispersed PAA / Fe3O4 mixture with moderate viscosity is obtained; and pouring the PAA / Fe3O4 mixture into a dry and flat glass plate, and carrying out a thermal imidization reaction through stepped heating to obtain the PAA / Fe3O4 composite film. And finally, directly writing the PAA / Fe3O4 composite film by using a 1064nm optical fiber laser, and adjusting laser processing parameters to obtain the carbon-loaded doped anti-spinel ferroferric oxide film capable of realizing alkaline hydrogen evolution.

Description

technical field [0001] The invention belongs to the field of preparing carbon materials by laser ablation, and in particular relates to a method for rapidly forming a carbon-supported doped inverse spinel ferric oxide film capable of alkaline hydrogen evolution. Background technique [0002] Laser (Laser) refers to the light radiated by excited atoms, which organically unifies light, machinery and electricity in its processing technology. As early as 1982, Banton et al. studied the ablation decomposition of PET under the action of ArF excimer laser, and found that the mechanism of laser etching was photochemical and thermal decomposition, and a large number of small molecules were produced during laser treatment. In 2014, Jian Lin et al. reported a method of producing porous graphene from PI film by using laser. 3 Carbon atoms photothermally converted to sp 2 carbon atom. Subsequently, they use CO 2 Lasers produced LIG on a variety of carbon sources (wood, potatoes, brea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B1/04C25B11/054C25B11/065C25B11/077
CPCC25B1/04C25B11/054C25B11/065C25B11/077Y02E60/36
Inventor 吴盾赵佳明刘春林王强曹峥成骏峰
Owner CHANGZHOU UNIV
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